PHP基于pdo的数据库操作类【可支持mysql、sqlserver及oracle】
author:一佰互联 2019-04-25   click:163

本文实例讲述了PHP基于pdo的数据库操作类。分享给大家供大家参考,具体如下:

工作中需要操作sqlserver、oracle都是使用的这个类,当时是在别人的基础上改进了,现在分享下

<?phpclass Pdodb{  protected $pdo;  protected $res;  protected $config;  /*构造函数*/  function __construct($config){    $this->Config = $config;    $this->connect();  }  /*数据库连接*/  public function connect(){    try {       $this->pdo= new PDO($this->Config["dsn"], $this->Config["username"], $this->Config["password"]);//$dbh = new PDO("mysql:host=localhost;dbname=test", $user, $pass);       $this->pdo->query("set names utf8");    }catch(Exception $e){      echo "数据库连接失败,详情: " . $e->getMessage () . " 请在配置文件中数据库连接信息";      exit ();    }    /*    if($this->Config["type"]=="oracle"){      $this->pdo->query("set names {$this->Config["charset"]};");    }else{      $this->pdo->query("set names {$this->Config["charset"]};");    }    */    //把结果序列化成stdClass    //$this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);    //自己写代码捕获Exception    //$this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);    $this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);//属性名 属性值 数组以关联数组返回  }  /*数据库关闭*/  public function close(){    $this->pdo = null;  }  //用于有记录结果返回的操作,特别是SELECT操作  public function query($sql,$return=false){    $res = $this->pdo->query($sql);    if($res){      $this->res = $res; // 未返回 return $this->res;    }    if($return){      return $res;    }  }  //主要是针对没有结果集合返回的操作,比如INSERT、UPDATE、DELETE等操作  public function exec($sql,$return=false){    $res = $this->pdo->exec($sql);    if($res){      $this->res = $res;    }    if($return){//返回操作是否成功 成功返回1 失败0      return $res;    }  }  //将$this->res以数组返回(全部返回)  public function fetchAll(){    return $this->res->fetchAll();  }  //将$this->res以数组返回(一条记录)  public function fetch(){    return $this->res->fetch();  }  //返回所有字段  public function fetchColumn(){    return $this->res->fetchColumn();  }  //返回最后插入的id  public function lastInsertId(){    return $this->res->lastInsertId();  }  //返回最后插入的id  public function lastInsertId2(){    return $this->pdo->lastInsertId();  }  /**  * 参数说明  * string/array $table 数据库表,两种传值模式  * 普通模式:  * "tb_member, tb_money"  * 数组模式:  * array("tb_member", "tb_money")  * string/array $fields 需要查询的数据库字段,允许为空,默认为查找全部,两种传值模式  * 普通模式:  * "username, password"  * 数组模式:  * array("username", "password")  * string/array $sqlwhere 查询条件,允许为空,两种传值模式  * 普通模式(必须加上and,$sqlwhere为空 1=1 正常查询):  * "and type = 1 and username like "%os%""  * 数组模式:  * array("type = 1", "username like "%os%"")  * string $orderby 排序,默认为id倒序  *int $debug 是否开启调试,开启则输出sql语句  * 0 不开启  * 1 开启  * 2 开启并终止程序  * int $mode 返回类型  * 0 返回多条记录  * 1 返回单条记录  * 2 返回行数  */  public function select($table, $fields="*", $sqlwhere="", $orderby="", $debug=0, $mode=0){    //参数处理    if(is_array($table)){      $table = implode(", ", $table);    }    if(is_array($fields)){      $fields = implode(",",$fields);      /*      if($this->Config["type"]=="oracle"){        //$fields = implode(",",$fields);//CUSTOMER_ID,FIRST_NAME,LAST_NAME,EMAIL        //$fields = implode(","UTF8","ZHS16GBK") ,convert(",$fields);        //$fields="convert(".$fields.","UTF8","ZHS16GBK")";      }else{        $fields = implode(",",$fields);      }      */    }    if(is_array($sqlwhere)){      $sqlwhere = " and ".implode(" and ", $sqlwhere);    }    //数据库操作    if($debug === 0){      if($mode === 2){ //统计        $this->query("select count(*) from $table where 1=1 $sqlwhere");        $return = $this->fetchColumn();      }else if($mode === 1){ //返回一条        $this->query("select $fields from $table where 1=1 $sqlwhere $orderby");        $return = $this->fetch();      }else{        $this->query("select $fields from $table where 1=1 $sqlwhere $orderby");        $return = $this->fetchAll();//如果 $this->res为空即sql语句错误 会提示Call to a member function fetchAll() on a non-object      }      return $return;    }else{        if($mode === 2){          echo "select count(*) from $table where 1=1 $sqlwhere";        }else if($mode === 1){          echo "select $fields from $table where 1=1 $sqlwhere $orderby";        }else{          echo "select $fields from $table where 1=1 $sqlwhere $orderby";        }        if($debug === 2){          exit;        }    }  }  /**  * 参数说明  * string/array $table 数据库表,两种传值模式  * 普通模式:  * "tb_member, tb_money"  * 数组模式:  * array("tb_member", "tb_money")  * string/array $set 需要插入的字段及内容,两种传值模式  * 普通模式:  * "username = "test", type = 1, dt = now()"  * 数组模式:  * array("username = "test"", "type = 1", "dt = now()")  * int $debug 是否开启调试,开启则输出sql语句  * 0 不开启  * 1 开启  * 2 开启并终止程序  * int $mode 返回类型  * 0 无返回信息  * 1 返回执行条目数  * 2 返回最后一次插入记录的id  */  public function oic_insert($table, $set, $debug=0, $mode=0){    //参数处理    if(is_array($table)){      $table = implode(", ", $table);    }    if(is_array($set)){      $s="";$i=0;      foreach($set as $k=>$v){        $i++;        $s[$i]=$k;//,连接        $val[$i]=$v;      }      $sarr=implode(",",$s);//去掉最后一个,      //array_pop($sarr);      $set=implode("","",$val);////15221579236","张三","","2001","8","4","女","是      //$set = implode(", ", $set);    }    //数据库操作    if($debug === 0){      if($mode === 2){        $this->query("insert into $table ($sarr) values("".$set."")");        //$return = $this->lastInsertId();      }else if($mode === 1){        $this->exec("insert into $table ($sarr) values("".$set."")");        $return = $this->res;      }else{        $this->query("insert into $table ($sarr) values("".$set."")");        $return = NULL;      }      return $return;    }else{      echo "insert into $table ($sarr) values("".$set."")";      if($debug === 2){        exit;      }    }  }  public function insert($table, $set, $debug=0, $mode=0){    //参数处理    if(is_array($table)){      $table = implode(", ", $table);    }    if(is_array($set)){      $s="";      foreach($set as $k=>$v){        $s.=$k."="".$v."",";//,连接      }      $sarr=explode(",",$s);//去掉最后一个,      array_pop($sarr);      $set=implode(",",$sarr);      //$set = implode(", ", $set);    }    //数据库操作    if($debug === 0){      if($mode === 2){        $this->query("insert into $table set $set");        $return = $this->pdo->lastInsertId();      }else if($mode === 1){        $this->exec("insert into $table set $set");        $return = $this->res;      }else{        $this->query("insert into $table set $set");        $return = NULL;      }      return $return;    }else{      echo "insert into $table set $set";      if($debug === 2){        exit;      }    }  }  /**  * 参数说明  * string $table 数据库表,两种传值模式  * 普通模式:  * "tb_member, tb_money"  * 数组模式:  * array("tb_member", "tb_money")  * string/array $set 需要更新的字段及内容,两种传值模式  * 普通模式:  * "username = "test", type = 1, dt = now()"  * 数组模式:  * array("username = "test"", "type = 1", "dt = now()")  * string/array $sqlwhere 修改条件,允许为空,两种传值模式  * 普通模式:  * "and type = 1 and username like "%os%""  * 数组模式:  * array("type = 1", "username like "%os%"")  * int $debug 是否开启调试,开启则输出sql语句  * 0 不开启  * 1 开启  * 2 开启并终止程序  * int $mode 返回类型  * 0 无返回信息  * 1 返回执行条目数  */  public function update($table, $set, $sqlwhere="", $debug=0, $mode=0){    //参数处理    if(is_array($table)){      $table = implode(", ", $table);    }    if(is_array($set)){      $s="";      foreach($set as $k=>$v){        $s.=$k."="".$v."",";      }      $sarr=explode(",",$s);//去掉最后一个,      array_pop($sarr);      $set=implode(",",$sarr);      //$set = implode(", ", $set);    }    if(is_array($sqlwhere)){      $sqlwhere = " and ".implode(" and ", $sqlwhere);    }    //数据库操作    if($debug === 0){      if($mode === 1){        $this->exec("update $table set $set where 1=1 $sqlwhere");        $return = $this->res;      }else{        $this->query("update $table set $set where 1=1 $sqlwhere");        $return = true;      }      return $return;    }else{      echo "update $table set $set where 1=1 $sqlwhere";      if($debug === 2){        exit;      }    }  }  /**  * 参数说明  * string $table 数据库表  * string/array $sqlwhere 删除条件,允许为空,两种传值模式  * 普通模式:  * "and type = 1 and username like "%os%""  * 数组模式:  * array("type = 1", "username like "%os%"")  * int $debug 是否开启调试,开启则输出sql语句  * 0 不开启  * 1 开启  * 2 开启并终止程序  * int $mode 返回类型  * 0 无返回信息  * 1 返回执行条目数  */  public function delete($table, $sqlwhere="", $debug=0, $mode=0){    //参数处理    if(is_array($sqlwhere)){      $sqlwhere = " and ".implode(" and ", $sqlwhere); //是字符串需自己加上and    }    //数据库操作    if($debug === 0){      if($mode === 1){        $this->exec("delete from $table where 1=1 $sqlwhere");        $return = $this->res;      }else{        $this->query("delete from $table where 1=1 $sqlwhere");        $return = NULL;      }      return $return;    }else{      echo "delete from $table where 1=1 $sqlwhere";      if($debug === 2){        exit;      }    }  }}/*sqlserver 配置 extension=php_pdo_mssql.dll和extension=php_pdo_sqlsrv.dll 安装对应的 ntwdblib.dllhttp://msdn.microsoft.com/en-us/library/cc296170.aspx 下载php版本对应的sqlsrv扩展sqlserver 配置 odbc连接需开启extension=php_pdo_odbc.dll*/$mssql2008_config=array(  "dsn"=>"odbc:Driver={SQL Server};Server=192.168.1.60;Database=his",//数据库服务器地址  "username"=>"sa",  "password"=>"xxxxx",);$mssql=new Pdodb($mssql2008_config);$sql="select * from(  select row_number()over(order by tempcolumn)temprownumber,*    from (      select top 10 tempcolumn=0,a.*      from DA_GR_HBFS a      where 1=1    ) t) ttwhere temprownumber>0";$mssql->query($sql);while($res=$mssql->fetch()){  $data[]=$res;}print_r($data);exit;//mysql 操作$msyql_config=array(  "dsn"=>"mysql:host=localhost;dbname=talk",  "username"=>"root",  "password"=>"123456");$mysql=new PDO_DB($msyql_config);$sql = "SELECT user_id, user_name, nickname FROM et_users ";$mysql->query($sql);$data=$mysql->fetchAll();print_r($data);exit;//oracle 操作$oci_config=array(  "dsn"=>"oci:dbname=orcl",  "username"=>"BAOCRM",  "password"=>"BAOCRM");$oracle=new PDO_DB($oci_config);//print_r($oracle);exit;//PDO_DB Object ( [pdo:protected] => PDO Object ( ) [res:protected] => [config:protected] => [Config] => Array ( [dsn] => oci:dbname=orcl [name] => PWACRM [password] => PWACRM ) )$sql="select * from CUSTOMER_LEVEL t";$oracle->query($sql);$data=$oracle->fetchAll();print_r($data);exit;/*Array(  [0] => Array    (      [LEVEL_ID] => 1      [0] => 1      [LEVEL_NAME] => 普通会员      [1] => 普通会员      [LEVEL_DETAIL] => 普通会员      [2] => 普通会员      [SORT_NUMBER] => 15      [3] => 15      [CREATE_TIME] => 12-7月 -12      [4] => 12-7月 -12      [CREATE_BY] => 1      [5] => 1      [UPDATE_TIME] => 12-7月 -12      [6] => 12-7月 -12      [UPDATE_BY] => 1      [7] => 1      [STATE] => 正常      [8] => 正常    ))*/?>

更多关于PHP相关内容感兴趣的读者可查看本站专题:《PHP基于pdo操作数据库技巧总结》、《php+Oracle数据库程序设计技巧总结》、《PHP+MongoDB数据库操作技巧大全》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

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